<!DOCTYPE html>
<html>
<head>
<style type="text/css">

    body {
      height: 100px;
      width: 300pt;
      -moz-column-width: 100pt;
      -moz-column-gap: 0;
    }

    #x { 
      padding: 100px;
    }

    #overflow {
      height: 400px;
      float: left;
    }

</style>
</head>

<body><div id="x"><div id="overflow"></div>K</div></body>

</html>
